[ 4444.723299][T26125] gre: GRE over IPv4 demultiplexor driver
[ 4446.833327][T26148] ip_gre: GRE over IPv4 tunneling driver
[ 4507.394197][T26720] ip6_gre: GRE over IPv6 tunneling driver
[ 4534.256808][T26977] ping (26977) used greatest stack depth: 23360 bytes left
[ 4549.992819][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4555.945708][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4561.000726][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4566.953707][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!